Malicious PDF — malware analysis report

Static analysis result for SHA-256 0aa1e2bbbeae1417…

MALICIOUS

PDF

45.1 KB Created: 2021-06-04 03:48:42 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 44af7ca896b8c9362225de2678bf5029 SHA-1: d2feeeb812a6e010186f35b025bb6b7f434e7b8b SHA-256: 0aa1e2bbbeae141742c8bf8ec9a68caba2130388805b29e9afdc0a5e5e8659ea
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains a prominent link disguised as a download button, directing users to a URL associated with game hacks. The ML classifier also flagged this PDF as malicious. The document body, though heavily obfuscated, contains references to 'Minecraft' and 'free', aligning with the lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

Heuristics 4

  • QR-code redirect lure medium SE_QR_LURE
    Document instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • External URI info PDF_URI
    PDF contains an external URL action
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://netcdn.online/app/479516143/how-to-get-minecraft-for-free-2021-game-hack PDF link annotation
    • https://elibrary.sttar.ac.id/repository/microsoft-free-robux_GM431946152.pdfIn PDF document text
    • https://elibrary.sttar.ac.id/repository/minecraft-toys-for-free_GM479516143.pdfIn PDF document text
    • https://elibrary.sttar.ac.id/repository/robloxheroxyz-free-robux_GM431946152.pdfIn PDF document text
    • https://elibrary.sttar.ac.id/repository/minecraft-pe-apk_GM479516143.pdfIn PDF document text
    • https://elibrary.sttar.ac.id/repository/how-to-get-java-minecraft-free_GM479516143.pdfIn PDF document text
    • https://elibrary.sttar.ac.id/repository/coin-master-hack-ios-apk_GM406889139.pdfIn PDF document text
    • https://elibrary.sttar.ac.id/repository/windows-10-minecraft-hacks_GM479516143.pdfIn PDF document text
    • https://elibrary.sttar.ac.id/repository/free-spins-coin-master-app-iphone_GM406889139.pdfIn PDF document text
    • https://elibrary.sttar.ac.id/repository/free-robux-ad_GM431946152.pdfIn PDF document text
    • https://elibrary.sttar.ac.id/repository/how-to-get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • https://elibrary.sttar.ac.id/repository/how-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • https://elibrary.sttar.ac.id/repository/free-minecraft-codes-2021_GM479516143.pdfIn PDF document text
    • https://elibrary.sttar.ac.id/repository/heroes-online-roblox_GM431946152.pdfIn PDF document text
    • https://elibrary.sttar.ac.id/repository/free-cash-twisted-murderer-roblox_GM431946152.pdfIn PDF document text
    • https://elibrary.sttar.ac.id/repository/coin-master-free-online-game_GM406889139.pdfIn PDF document text
    • https://elibrary.sttar.ac.id/repository/free-draw-roblox_GM431946152.pdfIn PDF document text
    • https://elibrary.sttar.ac.id/repository/roblox-zone-free-robux_GM431946152.pdfIn PDF document text
    • https://elibrary.sttar.ac.id/repository/coin-master-daily-bonus_GM406889139.pdfIn PDF document text
    • https://elibrary.sttar.ac.id/repository/get-free-robux-no-verification_GM431946152.pdfIn PDF document text
    • https://elibrary.sttar.ac.id/repository/free-tiktok-likes-no-human-verification-or-downloading-apps_GM835599320.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off00005402.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5402 25180 bytes
SHA-256: 85f7c437e80b6192631251c8d9d9e34feb2c6450315a96875766c0091d1689c6
font_01_sfnt_off00008dde.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8DDE 18276 bytes
SHA-256: f72584a9d01c2da042f33208491f9b72ec8022d2d16609869bbd7195f9399835